376 research outputs found
Piante e loro anomalie vegetative: schede documentarie. 27-39
The section dedicated to plant vegetative anomalies affecting vas- cular plants has started in the last issue of this journal, (Raimondo & Schicchi, 2010). In that first contribution 26 reports, by Spadaro & al. (2010) and by Cristaudo & al.(2010) respectively, were presented. The first 11 of them concern Anthemis secundiramea, Araucaria heterophylla, Cakile maritima, Conyza bonariensis, Euphorbia linifolia, Laurus nobilis, Ocimum basilicum, Orobanche lavandulacea, Osyris alba, Scrophularia canina subsp. Bicolour, and Ulmus sp.; The other15 reports concern Carlina gummifera, Echium plantagineum, Euphorbia dendroides, E. linifolia, E. myrsinites, Jasminum sambac, Pararchidendron pruinosum, Pereskia grandiflora, Prunus dulcis, Rumex bucephalophorus subsp. bucephalophorus, Spar- tium junceum, Opuntia ficus-indica, Phytolacca dioica, Verbascum Thapsus, and Vitis vinifera. The idea of editors to stimu- late observations on plant vegetative anomalies has been followed and several other cases have been now submitted for publication. In this second contribution 13 reports are presented: the first 11, by R.E. Spallino & M. Tessitori, concern veg- etative anomalies observed on Cynodon dactylon (L.) Pers., Convolvulus arvensis, Vitis vinifera cv. Chardonnay, Erigeron bonariensis, Echium plantagineum, E. vulgare, Genista aetnensis, Chenopodium album, Spartium junceum, Brassica rapa subsp. rapa and Picris echioides; the last 2, by G. Licandro & M.R. Cucco, refer to Aphodelus fistulosus and Hyoseris ra- diata. All reports concern cases observed in Sicily and refer both spontaneous and cultivated plants
MONITORAGGIO DEI MELETI DEL PINEROLESE COLPITI DA APPLE PROLIFERATION
Il monitoraggio effettuato nel biennio 2002-2003 ha permesso di accertare la presenza della malattia in due areali della provincia di Torino. L’indagine del 2003 ha riguardato i comuni situati tra Pinerolese e Val Pellice ed ha evidenziato la presenza di sintomi riferibili ad AP in tutti i comuni censiti.
I campionamenti sul vettore Cacopsylla melanoneura (Förster), eseguiti su un meleto campione, hanno permesso di approfondire le conoscenze sul ciclo dell’insetto e sulla sua presenza in meleto
MONITORAGGIO DEI MELETI DEL CANAVESE COLPITI DA FITOPLASMI AGENTI CAUSALI DI AP (APPLE PROLIFERATION)
Gli scopazzi del melo, causati da fitoplasmi, rappresentano una delle più pericolose avversità del melo. Negli ultimi anni si sono diffusi in molte regioni del nord Italia. Lo scopo del lavoro è stato definire le aree più colpite in provincia di Torino e studiare il ciclo biologico del vettore Cacopsilla melanoneura, nella prospettiva di un successivo controllo biologic
Three-year monitoring of potential insect vectors of “flavescence dorée” in Trentino vineyards through use of chromotropic traps
5openopenGelmetti, A.; Ghidoni, F.; Zapponi, L.; Mazzoni, V.; Bottura, M.Gelmetti, A.; Ghidoni, F.; Zapponi, L.; Mazzoni, V.; Bottura, M
Hot water treatment of Vitis sp. for Xylella fastidiosa
Following a request from the European Commission, the EFSA Panel on Plant Health (PLH) reviewed Italian technical guidelines and the ANSES (Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail) opinion on the use of hot water treatment (HWT) on Vitis sp. planting material, assessing its efficacy in the elimination of the xylem-invading bacterial pathogen, Xylella fastidiosa. HWT is a robust and reliable technique used to destroy life stages of pests (insects, nematodes) and to inactivate pathogens (phytoplasma, bacteria, fungi) in dormant plant propagation materials (grapevine and other crops). An effective HWT sanitizes the planting material without affecting plant survival and development. For grapevine, HWT to eliminate the Grapevine flavescence dorée phytoplasma (FD) from planting materials is among the special requirements for the introduction and movement of Vitis sp. to protected zones in the EU. The conditions of 50°C for 45 min, prescribed and recommended to sanitize grapevine planting material against FD, are considered by the Panel to be also effective against X. fastidiosa and its subspecies. Despite uncertainties on variable thermotolerances of the bacteria, a HWT treatment of 50°C for 45 minutes can effectively account for different thermotolerances. It should be noted that the quality of the HWT is subject to the proper application of the operating procedures to guarantee vigorous growth and pathogen freedom of planting material
Scelta varietale per la coltivazione del mirto
In the framework of the cultivar selection program of the DESA - University of Sassari, 40
selections have been completely described. Differences for plant shape and vegetative vigour,
fruit and green biomass yield, fruit technological characteristics and leaf essential oil
composition may be easily observed in the large availability of cultivars. In order to know
the most sensitive selections to the reflowering occurrence and to have a good definition of
the fruit ripening time, cultivar description included a careful observation of the phenological
behaviour.
The first results of a further selection program are also presented. More than 20 new
cultivars have been obtained by open pollination and seedling characterization and are
actually under evaluation
Entomofauna e parassiti del mirto
Myrtle pests are mainly represented by Rhinchota homoptera and Thisanoptera. In
particular, Saissetia oleae, Partenolecanium corni e Ceroplastes rusci are the most frequent
species reported in Sardinia whereas Heliothrips haemorroidalis is a harmful pest in other
Italian regions. Pest control in myrtle cultivations is possible only following the plant
protection regulation of European organic agriculture. In fact, in Italy there currently are no
conventional insecticides authorized for myrtle destined to liquor or essential oil production
La Coltivazione del mirto come complemento alle raccolte da piante spontanee per la sostenibilità dell'utilizzo industriale
The myrtle liqueur industry is developed in Sardinia by using the myrtle berries harvested from spontaneous
plants as raw material. The market growth of this liqueur changed them from a home-made product to an
industrial one, with increasing export to the national and international consumers. Myrtle liqueur is just an
example of the typical regional sweet liqueurs of low alcohol content that recently are appreciated to a world
level.
Fruit harvests from spontaneous plants are well organized but the yield is not predictable depending on
meteorological factors and on the occurrence of some events such as fires. Also the quality of the raw
material is out of the control of harvesters and liqueur factories.
The need to have an alternative system of raw material production and to reduce the ecological pressure over
spontaneous plants generate a ten year long research for the optimisation of growing models of the species
and the cultivar selection.
The main results of the research program for myrtle cultivar selection and evaluation are reported. In
particular, plant phenology and fruit technological characteristics for liqueur production were carefully
observed
Scopazzi del melo: stato attuale della ricerca = Apfeltriebsucht: aktueller Stand der Forschung
4openItalian coauthor/editoropenJanik, K.; Barthel, D.; Oppedisano, T.; Anfora, G.Janik, K.; Barthel, D.; Oppedisano, T.; Anfora, G
- …